Distibution. You distribute the -2 to everything inside the parenthesis.
If two triangles are similar (in the geometric sense), then the sides must be proportional.
This is markdown, thus once again, two equations.
Markdown=Original-New
and
Markdown%=Markdown Amount/Original*100
Markdown=10-3
Markdown=7
Markdown%= 7/10*100
=0.7*100
=70
Thus, the percent decrease/Markdown is 70%.
Answer:
1.4
Step-by-step explanation:
add the MADs together then divide them by two.
First equivalent ratio: 30/90 or you can simplify and get 1/3
Second equivalent ratio: 3:9 or simplify to get 1:3
Third equivalent ratio: 0.3333333333333333 or simplify it to get: 0.3
Hope this helps! :)
